Body-dumping vehicle.



Patented Feb. 18, 1919.

4 SHEETSSHEIET I.

GVL. HARVEY.

BODY DUIVIPINGVEHICLE.

APPLICATION FILED JUNE 3.1918.

G. L. HARVEY. BODY DUMPING VEHICLE. APPLICATION FILED JUNE 3. I918.

Pafeflted Feb. 18

{1919. 4 sham-suing.

mm H. F e 71:.)

. Patented Feb. 18, 1919.-

4 SHEETSSHE E T- 3.

G. L. HARVEY. 500v DUMPING VEHICLE. APPLICATION FILED JUNE SIIQIB.

I HIIIII G.'L. HARVEY.

BODY DUMPING VEHICLE.

APPLICATION FILED JUNE3. 1 918 m mee Patented Fee.1s, 1919..

4 SHEETS-SHEET 4- i uric.

GEORGE L. HARVEY, OF CHICAGO, ILLINOIS.

BODY-DUMPING VEHICLE.

Specification of Letters Iatent. .Patented Feb. 18, 19ll9.

Application filed June 3, 1918. .Serial No. 237,852.

To all whom it may concern:

Be it known that I, GEORGE L. HARVEY, a citizen of the United States,and resident of Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Body- DumpingVehicles, of which the following is a specification.

My invention relates to dumping trucks or wagons and hasparticularreference to a novel arrangement for lifting and tilting thebody of such vehicles. A similar construction isshown in my copendingapplication, Serial No. 245,226, filed July 16, 1918.

. In the handling of coal and similar com modities it is desi able toprovide a vehicle the body of which is capable of being tilted in orderto discharge its load. Such devices have been commonlyused. However, itis at times desirable to tilt the body to discharge at a low levelandvother timesat a higher level in'order'to secure the requisiteincline between the point of discharge from the discharged contents intoa receptacle. Means have been provided for dumping a yehicle body by acombined lifting and tiltmg movement but the mechanism employed has beensubject to many objections which are overcome in the device heredisclosed.

It is desirable also to be able to adjust the extentof elevation of thebody between its extreme limits, and in order to avoid complications,the mechanism for accomplishing this result should be capable of manualadjustment without the expenditure of more than ordinary force. In orderto accomplish the desired result I have provided means whereby thisadjustment may be effected with the parts in a position of rest. Theresult is secured by merely shifting the fulcrum of the two bodysupporting beams.

By changing this fulcrum the extent of elevation of the body-withrelation to a specified lift of the front end thereof may be controlled.

An object therefore in the present arrangement is to provide bodytilting mechanism having the capacity of combined bodily elevating andtilting movements, the extent of elevation being adjustable by simplemeans.

In order to render such'a device eculiarly effective, the lifting forceis applied in such manner as to secure the maximum lifting effect, thefront end of the tilting body being elevated vertically during the firstpart of the lift no thrustonangularlydisposed lifting links beingrequired. This is a fundamental objection to many of the lifting devicesheretofore proposed;

' Not only may the device be lifted and tilted simultaneouslyandthe-extent of ele 'vation be controlled by suitable manual ad- Theinvention will bemore readily understood by reference to theaccompanying drawings, wherein, v

' Figure l is a side elevation of a dumping vehicle, the body beingshown in a tilted and elevated position; v Fig. 2 is a bottom lan viewthereof; Fig. 3-is a transverse vertical section on the line 3-3 of Fig.4; Fig. 4 is a fragmentary, longitudinal sectiona-l view on the line4-4of Fig. 3;

Fig. 5 is a fragmentary detail view show- 'ing one form ofelevatingmeans which'may be employed;

Fig. '6 is an outline view similarto Fig. 1 showing the parts in adifferent elevated and tilted position, and,

Fig. 7 is a similar view s'howing the parts in a tilted position, themeans for elevating being inoperative. p

In the drawings, the device is shown as applied to a vehicle, such as amotor truck, the same being provided with a main frame 10, of the usualform. Rigidly secured to the rear extremity of the frame are brackets11, which serve as the bearings for a transverse shaft 12. This shaftacts'as a pivot for one end of a beam which may be composed of twoI-beams 13, 14, suitably united to act as a single element. A shaft 15,connects the beamat its forward end to the for.- ward end of a bodyframe 16. The frame 16, may be constructed in any suitable mannertosupport a body 17, adapted to contam the material to be dum'ped. Theuse of ,a body frame may be found to be unnecessary in some 1nstanoes,th e body itself be- "ing of suificient strength and stiffness tosupport the load. It will be understood therefore, that in the followingspecificaward end is elevated. In order to accom-' plish such a result Iprovide a second beam which consists of the I-beams 18, 19, joined bythe cross pieces 20, 21, as best shown. in Fig.2, in order to form inefi'ect a single beam. This beam, which will be hereafter referred to bythe numeral 18, is pivoted by means of the shaft 22, to the rear end ofthe body frame 16, and at the forward end the beam is provided with aloop or stirrup 23, acting as a bearing for a roller 2%, which slidablyengages a longitudinal beam 25.

At the intersection between the tilting and elevating beams 13, 18,respectively, I provide a fulcrum, (best shown in Figs. 1, 3 and 4)consisting of a casting or member 26, which embraces, by means of thedepending ears 27, 28, the I-beams 18, 19, constituting the elevatingbeam. "As shown, the beams 18, 19, are provided with ribs 29, 30, whichare engaged by the undercut brackets or projections 31, 32, on thedepending cars 27, 28.

' Inthe upper end of the casting 26, I mount a transverse shaft or pin33, which serves as a support at its overhung ends for supporting andguiding loops or stirrups 34;, which embrace the members 13, ll,constituting the tilting beam. These stirrups are preferably oftriangular form in elevation and rollers 36, 37, 38. are laced at thecorners of the triangle, the ro lers engaging the upper and lowersurfaces of the I-beams 13, 14c. These stirrups or loops have, as willbe seen, the capacity for oscillation on the shaft 33, as a pivot.

Inasmuch as the position of the fulcrum controls the extent of elevationof the body, I have provided means for adjusting such position. Thismeans comprises a worm or threaded shaft 39, which is anchored, withcapacity for rotation in the transverse member 21, and has engagementwith a threaded aperture in the member 26. The'opposite end of thethreaded shaft is squared as at 10, and may be engaged by a hand crank41. Rotation of the shaft by means of the crank serves to move thefulcrum and its assoiated parts longitudinally of the beam 18. fn Fig. 1the fulcrum is shown at a point close to the rear end of the beam andthus the elevationof the tail end of the body is relatively slight. InFig". 6, however, the

v fulcrum is shown at an intermediate point or levers.

movement of this fulcrum is effected While the parts are in a positionof rest and there no resistance to such movement. It may therefore beaccomplished manually and with very simple mechanism.

If desired, some portion adjacent to the threaded shaft 39, such as thebeam 25, may be graduated, as indicated at 39*, the graduationpreferably being such as to indicate the elevation in feet of the rearend of the body at diiferent positions of the shiftable, fulcrum 26.

In order to operate the device as a simple tilting body to secure theaction shown in Fig. 7, the beam (best shown in Fig. 1) is pivoted atits rear end on the shaft 12, its forward end being retained in theposition shown by means of a loop 42, or other readily disengageablemeans. In normal operation the forward end of the beam 18, travels orslides freely on the beam 25, there being a tendency to lift the beam25, and permit the parts to collapse into the position shown in Fig. 7.When it is desirable to tilt the body into the position efFig. 7, thefastening device 42, is disengaged before the tilting action is begun,no further adjust-me 1; being necessary. When the body has been returnedto its normal position, the-holding device 42, may be returned toholding engagement if it be thereafter desired to elevate the body onthesubsequent actuation.

'As a. means for elevating and tilting the body I have provided anelongated cylinder l3, having a plunger 44, carrying pulleys 4:5, at itsupper end. Cables as, are anchored at 4:7, these cables, after passingover the sheaves s15, engaging with the downwardly projecting arms 48,secured to the body or body frame. Thus the lifting action is applied tothe extreme forward end of the bo'dy and in effect to the forward end ofthe beamv 13. Thus the initial lift is in a. straight line and there isno angular thrust on any links Of course, the lifting force may beapplied in some other manner but it should be applied in av direct lineto the beam 13, at a pointasne'ar its forward end as possible.

It will be apparent that there might be a reversal of some of the partswhereby thesame result would be secured. For instance, the shiftingbearing of,the beam 18, might be placed at the end opposite to thatshown 1 frame, and means for alternately bodily lifting and oscillatingsaid dumping frame. said means including a pair of beams which areangularly disposed when in dumping position, each beam being fixedlypivoted to opposite extremities of the dumping frame, and a' slidableand adjustable fulcrum at the intersection of said beams, substantiallyas described. v

2. In a dumping device for vehicles, the combination of a vehicle frame,a dumping frame, means for alternately bodily lifting and oscillatingsaid frame, said means including a pair of beams which areangularlydisposed 'when in "dumping position, each beam being fixedly'pivoted toopposite eX- tremities of,tl1e, dumping frame, a sliding fulcrumat theintersection of said beams, and means for adjusting said fulcrumlongitudinally of one of said beams, whereby to change the amount ofbodily lift of said dumping frame, substantially as described 3. In adumping vehicle, thecombination of a main frame, a dumplng frame, atilting beam fixedly pivoted at one end to the rear of the main frameand at the other end to the front of the dumping frame, an elevatingbeam pivoted to the rear of the dumping frame, a third beam pivoted tothe rear of the main frame at a point substantially coincident with thepivot of the tilting beam, said third beam providing a sliding bearingfor the forward end of the elevating beam, and means for connecting saidthird beam to the main frame, and for disconnecting the same therefrom,substantially as described.

4. In a dumping vehicle, the combination of a main frame, a dumpingframe, a beam fixedly pivoted to the rear end of the main frame andtot-he forward end of the dumping frame, a second beam pivoted to therear end of the dumping frame and fulcrumed on the first. beam at apoint intermediate the length thereof, a third beam pivoted to the rearend of the main frame, said third beam providing a sliding bearing forthe forward end of the second beam, substantially as described.

5. In a body dumping device, the combination of a supporting frame, abody frame, a beam pivotedat its ends to the supporting and body framesrespectively, at-

the opposite ends thereof, a second beam angularly disposed withrelation to the first beam when the parts are in tilting position, saidsecond beam being pivoted to the body frame and having a sliding pivotalbearing on the supporting frame, and a shifting pivotal fulcrumcomprising a portion adapted to be held in'a relatively fixed positionon one beam, and loops pivoted to said [fixed portion and adapted toguide and support the other beam, substantially as described.

6. In a body dumping device, the com-' 'bination of a supporting frame,a body frame, a beam pivoted at its ends-to the.

supporting and body frames respectively, at the opposite ends thereof, asecond beam front of the frame,

angular-1y disposed with relation to the first beam when the parts arein tilting position,

said second beam being pivoted to the body frame and having a slidingpivotal bearing on the supporting frame, and a shifting pivotal fulcrumat the intersection of said beams, said fulcrum comprising a portionadapted to be held in a relatively fixed position on one beam, loopspivoted to said I of a main frame, a dumping frame, oppo;

sitely extending beams pivoted to the main and dumping frames, a fulcrumbeing provided at, the intersection of the beams, one of said beamshaving the capacity for free sliding movement on said fulcrum, and meanscarried by the other beam for adjusting said fulcrum longitudinallythereof, substantially as described.

8. In a dumping vehicle, the combination of a main frame, a dumpingframe, a beam extending from the. forward end of the dumping frame tothe rear end of the main frame, a second beamextending from the rear ofthe dumping'frame forwardly to a point on themain frame, a fulcrum atthe intersection of said beams, said first beam having the capacity forfree sliding move? ment on said fulcrum, and means carried by the secondbeain for adjusting said ful crum at the intersection of said beams, and

means for disconnecting the sliding bearing from the vehicle framewhereby the beams become inoperative and the body may be tilted withoutelevating it, substantially as describedf 10. In a dumping Vehicle, thecombination of a vehicle frame, a body, a beam extending from the frontof the body to the rear of the frame, a second beam extending from therear of the body toward the a third normally horizontal beam extendingforwardly from the rear of the frame, said third beam providmg a slidingbearing for the forward end of the second beam, and means for releasingthe forward end of said third beam, thereby rendering said first andsecond beams inoperative andpermitting the body to be tilted withoutelevation, substantially as described.

11. In a dumping vehicle,the combination of a vehicle frame, a body, abeam fixedly pivoted at. one end to the forward end of the body, asecondbeam fixedly pivoted to the rear of the body and having a slidingbearing on the vehicle frame, a sliding fulcrum at the intersection ofsaid beams, and means for disconnecting the sliding bearing from thevehicle frame whereby the beams be- .come inoperative and the body maybe tilted without elevating it, substantially as described.

12. In a dumping vehicle, the combination of a main frame, a dumpingframe, a beam extending from the forward end of the dumping frame to therear end of the main frame, a second beam extending from the rear of thedumping frame forwardly to a point on the main frame, and slidablyengaging the latter frame, a permanent fulcrum at the intersection ofsaid beams, and

means for disconnecting the slidable end of said'second beam from themain frame.

whereby the second beam is rendered inoperative and the dumping framemay be tilted without elevating it, substantially as described.

13. In a dumping vehicle, the combination of a main frame, a dumpingframe, a pair of oppositely extending beams forming the connectionbetween said frames, said beams being permanently slidably connected attheir intersection, and means for disconnecting the end of one beam fromthe main frame.

whereby the dumping frame may be tilted.

- without elevating it, the connection between the beams serving tomaintain both said beams in parallelism with the dumping frame duringthe tilting action, substantially as described.

14. Ina dumping vehicle, the combination of a main frame, a dumpingframe, a pair of oppositely extending beams forming the connectionbetween said frames, a permanent fulcrum at the intersection of saidbeams,

of a main frame, a dumping frame, a pair of oppositely extending beamsforming the connection between said frames, one beam being permanentlyfulcrumed on the other at a point intermediate the length of the beams,and means 'for disconnecting the end of one beam from the main frame,whereby the naeapae dumping frame may be'tilted without elevating it,the connection between the beams serving to maintain both said beams inparallelism with the dumping frame during the tiltingaction,.substantially as described.

16. In an elevating and tilting dumping device, the combination of amain frame, a dumping frame, a pair of beams, one end of one beam beingfixedly pivoted to one end of the dumping-frame, andone end of the otherbeam being fixedly pivoted to the other end of the dumping frame, theopposite end of the last named beam being 'slidably pivoted to the mainframe, one beam being permanently slidably'fulcrumed on the other beam,and means for operatively disconnecting the end of the slidably pivotedbeam from the main frame, whereby the dumping frame may be tiltedwithout elevating it, substantially as described.

' 17. In a. dumping vehicle, the combina' tion of main and dumpingframes, a pair of oppositely extending beams providing a -four-pointsupport for the dumping frame,

three of said points being in the form of fixed pivots, the fourth pointbeing in the form of a sliding pivot, a sliding fulcrum at theintersection of said beams, and means for operatively disconnecting saidsliding fourth point from the main frame whereby the dumping frame issupported on one point and'may be tilted without elevating it,substantially as described.

' 18. In a dumping vehicle,-the combination of main and dumplng frames,a pair of 0ppositely extending beams providing a fourmil point supportfor the dumping frame, three of said points being in the form of fixedpivots, the fourth point being in the form of a sliding pivot, saidbeams being permanently slidably connected at their intersection, andmeans for operatively disconnecting said sliding fourth point from themain frame whereby the dumping frame is supported on one point and maybe tilted without elevating it and the beams are allowed to remain.in'parallelism with each other and with -the dumping frame,substantially as described.

19. In a dumping device, the. combination of main and dumping-frames,oppositely extending beams, one end of each of which is fixedly pivotedto the dumping frame, said beams being permanently slidably fulcrumed at-the point of intersection of the longitudii nal axes of the beams, andmeans for adjusting said fulcrum along the longitudinal axis of one beamwithout changing the relation ofv the fulcrum to the longitudinal axisof the other beam, substantially as described.

-20. Ina dumping device, the combination of main and dumping frames, abeam fixedly pivoted at one end to the dumping frame and at, the otherend to the main frame, a second oppositely extending beam fixedlypivoted at one end to the dumping frame and slidably pivoted at itsother end to the main frame, said beams being slidably fulcrumed at theintersection of their longitudinal axes, and means for adjusting saidfulcrum along the longitudinal axis of one beam Without changing therelation of the fulcrum to the longitudinal axis of the other beam,substantially as described.

Signed at Chicago, 111., this 29th day of 10 GEORGE L. HARVEY. Witness:7

T. D. Bum.

